Park - Engine Running

Park - Engine Running:

PARK-ENGINE RUNNING

DIRECT CLUTCH - RELEASED
FORWARD CLUTCH - RELEASED
LO AND REVERSE CLUTCH - RELEASED
CONVERTER CLUTCH - RELEASED
INTERMEDIATE BAND - RELEASED
ROLLER CLUTCH - NOT HOLDING

With the selector lever in the Park (P) position, oil from the pump is directed to the following:
1. Pressure Regulator Valve
2. Converter and Lubrication System
3. Pump Slide
4. Manual Valve
5. Pressure Relief Valve
6. Line Pressure Tap

Oil flows from the pump to the pressure regulator valve which regulates the pump pressure. When the pump output exceeds the demand of line pressure, oil from the pressure regulator valve is directed to the converter feed passage to fill the converter. Converter return oil is directed to the transmission cooler. Oil from the cooler is directed to the transmission lubrication system.

Oil is also directed from the pressure regulator valve to the pump slide to decrease pump output to the pressure of the regulator valve spring force, or 482 kPa (70 psi). Line pressure acts on the pressure relief valve which will exhaust any oil above 2,068 to 3,102 kPa (300 - 450 psi).

Line pressure at the manual valve is available for use in other drive ranges.

SUMMARY
The converter is filled; all clutches and the band are released. Manual linkage has the parking pawl engaged in the reaction-internal gear lugs. The transmission is in Park (P). Line pressure is regulated to approximately 483 kPa (70 psi).